Transmitting-gear for windmills.



No. 666,590. Patented Jan. 22, |90I. J. H. ALLISON.

TBANSMITTING GEAR FOR WINDMILLS.

(Application led Mar. 26, 1900.)

(No Model.)

ll/ www /N VEN TOI? Druten STATES PATENT Ormea.

JESSE I-I. ALLISON, OE SAN ANTONIO, TEXAS.

SPECIFICATION forming part of Letters Patent No. 666,590, dated January22, 190i.

Serial No. 10,191. lNo model.)

T0 all 1071/0711 t r11/(ty concern.-

Beitknown that I, J Esse H. ALLIsoN, aeitizen of the United States, anda resident of San Antonio, in the county of Bexar and State of Texas,have invented a new and Improved Transmitting-Gear for Vindmills, ofwhich the following is a full, clear, and exact description.

The object of the invention is to provide a new and improvedtransmitting-gear for windmills Which is simple and durable in.construction, very eective in operation, and arranged to impart a longstroke to the pump-rod or other device to be actuated.

The invention consists of novel features and parts and combinations ofthe same, as will be fully described hereinafter and then pointed out inthe claims.

Reference is to be had to the accompanying drawing, forming a part ofthis specification, in which the figure is a perspective view of theimprovement.

On the upper end of a tower A is arranged a suitable circular bearing B,in which is mounted to turn a ring C, carrying brackets O for thebearings of a Windmill-shaft D, at one end of which is secured awind-wheel E of any approved construction. On the shaft D between thebrackets C' is secured a pinion F, in mesh with an elongated internalrack G, provided at its lower end with a shank G' for connection withthe rod of a pump or other machinery to be driven. The shank G passesloosely through a ring-shaped bearing H, carried by rods H', secured tothe under side of the ring C to properly guide the rack G in itsup-and-down movement and to allow said rack to swing transversely as itreciprocates, the rack-teeth engaging the pinion F at one side.

In order to hold the elongated internal rack G in mesh with one side ofthe pinion F, the said rack G is provided on one side with a guide-barG2, extending beyond the faces of the said rack G to engage guide-pinsO2, secured on the brackets O', the arrangement being such that the barG2 during one of its strokes travels with its outer face on the innerside of said pins O2, as shown in the drawing, and when the other sideof the rack G is in engagement with the pinion F then the inner face ofthe guide-bar G2 is in engagement with the outer side of said pins toprop"-v erly hold the rack G in mesh with the pinion F'. By reference tothe drawing it will be seen that for the purpose mentioned the pins O2are located in a horizontal plane extending through the axis of theshaft D and through the point of contact between the pinion E and therack G. By the arrangement described the elongated internal rack G is atall times in proper mesh with the pinion F, so that when the Wind-WheelE is in motion the pinion F transmits the rotary motion of the wheel Eand shaft D to the rack G to cause the same to reciprocate and actuatethe pump or other machinery to be driven.

It is understood that the transmitting-gear can be used in othermachines besides a windmill-for instance, on pumping-jacks, handpumps,and the like. When used on a pumping-jack, only a slight change isneeded on the frame, and the ring will be made square to bolt onthesills.

Having thus fully described my invention, I claim as new and desire tosecure by Letters Patentl. In a transmitting-gear, the combination witha support provided with brackets, a shaft mounted in said brackets, apinion on the shaft between the brackets, and an elongated internal rackmeshing with the pinion, of a guide-bar secured to one side of the rackand projecting beyond the side faces thereof, and guide-pins secured tothe brackets, said pins projecting toward each other, and adapted toalternately engage the inner and outer faces of the said guide-bar,substantially as described.

2. In a transmitting-gear for windmills, the combination with a towerprovided with a circular bearing, of a ring mounted in the bearing andprovided with upwardly-extending brackets, a wind-wheel shaft mounted inthe brackets, a pinion on the shaft, an elongated internal rack, meansfor holding the rack in mesh with the pinion, and downwardly-projectingrods secured tothe ring and carrying a bearing at their lower ends,through which the shank of the rack loosely passes, substantially asdescribed.

3. In atransrnitting-gearfor windmills, the combination with a towerprovided with a circular bearing, of a ring mounted in the bear- TOO 1orods secured to the ring and carrying at their lower ends a bearingthrough which the shank of the rack loosely passes, substantially asherein shown and described.

In testimony whereof I have signed my name to this specification in thepresence of i 5 two subscribing witnesses.

JESSE H. ALLISON.

Witnesses:

J. L. MANLEY, W. H. VAN RIPER, Sr.

